Postcode 21101
Location: Southwest Finland → Turku → Naantali
1 location(s) using this postal code in Southwest Finland, Finland
About Postcode 21101
This postal code is assigned to Naantali Municipality Sub-region Turku, Southwest Finland, Finland. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
Finland uses numeric postal codes with 5 digits (example: 00100). In our directory, these codes are organized from regions down to municipalities.
- 21 — Region (Southwest Finland)
- 10 — Sub-region (Turku)
- 1 — Municipality (Naantali)
How to Use This Postcode 21101
When sending mail or packages to this area, use the postal code below to ensure accurate and timely delivery.
Address format example:
Recipient Name
House #, Street Name
Naantali
Turku, Southwest Finland
21101
Finland
Domestic Mail
Include this postcode on all letters and packages sent within Finland.
International Mail
For international deliveries, include "Finland" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Southwest Finland → Turku → Naantali in Finland.
Is this a valid List Post Code?
Yes. 21101 is an active postcode for Southwest Finland → Turku → Naantali in Finland. It follows the 5-character format used in this country.
How do I find the postal code for a specific address?
Search by region, sub-region, and municipality to find the correct postcode in Finland. Search Postcodes
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Useful Resources
Developer API
Get this data via API
Free JSON for postcode 21101.
https://api.listpostcode.com/v1/countries/FI/postcodes/21101curl -H "x-api-key: YOUR_API_KEY" \
"https://api.listpostcode.com/v1/countries/FI/postcodes/21101"Requests need a free API key.